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There are no activity reports for Hakkodasan.
Summary of eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|1550 ± 100 years||Unknown||Confirmed||1||Radiocarbon (corrected)||SW flank of O-dake (Jigoku-numa)|
|1340 ± 75 years||Unknown||Confirmed||1||Radiocarbon (corrected)||SW flank of O-dake (Jigoku-numa)|
|0450 (?)||Unknown||Confirmed||1||Radiocarbon (corrected)||O-dake, Hk-1 tephra|
|0050 BCE (?)||Unknown||Confirmed||1||Radiocarbon (corrected)||O-dake, Hk-2 tephra|
|1150 BCE (?)||Unknown||Confirmed||1||Radiocarbon (corrected)||O-dake, Hk-3 tephra|
|2250 BCE (?)||Unknown||Confirmed||3||Radiocarbon (corrected)||O-dake, Hk-4 tephra|
|2850 BCE (?)||Unknown||Confirmed||2||Radiocarbon (corrected)||O-dake, Hk-5 tephra|
The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.
Japan Association Quaternary Research, 1987. Quaternary Maps of Japan: Landforms, Geology, and Tectonics. Tokyo: Univ Tokyo Press.
Japan Meteorological Agency, 1996. National Catalogue of the Active Volcanoes in Japan (second edition). Tokyo: Japan Meteorological Agency, 502 p (in Japanese).
Japan Meteorological Agency, 2013. National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency.
Kudo T, Hoshizumi H, 2006-. Catalog of eruptive events within the last 10,000 years in Japan, database of Japanese active volcanoes. Geol Surv Japan, AIST, http://riodb02.ibase.aist.go.jp/db099/eruption/index.html.
Kudo T, Okuno M, Ohba T, Kitade Y, Nakamura T, 2000. The eruptive products from Jigoku-numa hot pool in Kita-Hakkoda volcano group, northeast Japan: eruption style, magnitude and age. Bull Volc Soc Japan (Kazan), 45: 315-322 (in Japanese with English abs).
Kuno H, 1962. Japan, Taiwan and Marianas. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 11: 1-332.
Nakano S, Yamamoto T, Iwaya T, Itoh J, Takada A, 2001-. Quaternary Volcanoes of Japan. Geol Surv Japan, AIST, http://www.aist.go.jp/RIODB/strata/VOL_JP/.
Ohba T, Kitade Y, 2005. Subvolcanic hydrothermal systems: implications from hydrothermal minerals in hydrovolcanic ash. J Volc Geotherm Res, 145: 249-262.
Suzuki T, Eden D, Danhara T, Fujiwara O, 2005. Correlation of the Hakkoda-Kokumoto Tephra, a widespread middle Pleistocene tephra erupted from th Hakkoda caldera, northeast Japan. The Island Arc, 14: 666-678.
Suzuki T, Nakayama T, 2007. A 2.0 Ma widespread tephra associated with a large-scale pyroclastic flow from the Sengan geothermal area, northeast Japan arc. Bull Volc Soc Japan (Kazan), 52: 23-38 (in Japanese with English abs).
The basaltic-to-rhyolitic Hakkodasan volcano includes 14 stratovolcanoes and lava domes south of Mutsu Bay at the northern end of Honshu. The NE rim of an 8-km-wide Pleistocene caldera forms an arcuate ridge across a flat caldera-floor moat NE of the Hakkoda group volcanoes, which bury the SE caldera wall. A northern group of volcanoes, constructed within the caldera, appears to be younger than the southern group. Hakkoda-Odake, Ido-dake, and Tsurugi-dake have well-preserved craters. Akakura-dake has a 1-km-wide explosion crater breached to the north. No historical eruptions are known, although an active solfatara occurs at Ido-dake, and hot springs are found at several locations within the caldera. Three minor phreatic eruptions were documented from Jigoku-numa on the SW flank of Odake volcano from the 13th-17th centuries. Three soldiers on a training mission in July 1997 were killed by inhalation of volcanic gas.